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675 : Technologie du cuir et de la fourrure |
Ouvrages de la bibliothèque en indexation 675
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[article]
Titre : D'un foulon à l'autre Type de document : texte imprimé Auteurs : G. Vallet, Auteur ; Raymonde Lasserre, Auteur Année de publication : 1973 Article en page(s) : p. 118-122 Langues : Français (fre) Catégories : Foulons Index. décimale : 675 Technologie du cuir et de la fourrure En ligne : https://drive.google.com/file/d/1Bead-WlKhD98xbvOrjuC_AYm77s4JVbc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22495
in TECHNICUIR > N° 6 (06-07/1973) . - p. 118-122[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 009076 - Périodique Bibliothèque principale Documentaires Disponible 009071 - Périodique Bibliothèque principale Documentaires Disponible Fractionation of Cr and determination of Cr(VI) in blue shavings / R. Milacic in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), LXXXVII, N° 6 (06/1992)
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[article]
Titre : Fractionation of Cr and determination of Cr(VI) in blue shavings Type de document : texte imprimé Auteurs : R. Milacic, Auteur ; Janez Stupar, Auteur ; Nevenka Kozuh, Auteur Année de publication : 1992 Article en page(s) : p. 221-232 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Blue shavings are a protein-based matrix with a high content of chromium(III) salts and organic polymers.If they contain excessive amounts of chromium(VI) they could be a potentially hazardous waste in the environment.Fractionation of chromium in blue shavings was studied by employing various sequential extraction procedures to determine the water soluble,exchangeable,organically bound,carbonate,crystalline, hydroxide and sulphide fractions.Chromium(VI) was determined in the phosphate buffer extractable(pH=6.5-7.0) fraction.
Results obtained by several analytical techniques indicate limitations in the determination of Cr(VI).Ion-pairing reversed phase HPLC combined with flame or electrothermal AAS was found to be affected by severe matrix effects due to organic polymers in blue shavings and high salt concentrations in the buffer and extractant solutions.Chelating ion-exchange and ion-exchange chromatography combined with flame AAS detection gave over-estimated results due to inefficient retention of inert Cr(III) complexes.Spectrophotometry(addition of diphenylcarbazide reagent to the analyte prior to acidification) and extraction of Cr(VI)-HC1 complex into MIBK(277K) gave generally comparable and reliable results.The detection limit for the former technique was 2 ng cm(-3) and 15 ng cm(-3) for the latter.Our investigations indicate that over 90 percent of total chromium in blue shavings is in chemically inert form,approxymately 8 percent is extracted with Na4P2O7 while less than 0.003 percent exists in the toxic chromate form.En ligne : https://drive.google.com/file/d/1h15lkLO0eXXzNFGmURWR9ibxLcnpkr0t/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8310
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > LXXXVII, N° 6 (06/1992) . - p. 221-232[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006894 - Périodique Bibliothèque principale Documentaires Disponible Fractionational and structural characterization of lignin and its modification as biosorbents for efficient removal of chromium from wastewater : a review / Bing Wang in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 1 (Année 2019)
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Titre : Fractionational and structural characterization of lignin and its modification as biosorbents for efficient removal of chromium from wastewater : a review Type de document : texte imprimé Auteurs : Bing Wang, Auteur ; Yong-Chang Sun, Auteur ; Run-Cang Sun, Auteur Année de publication : 2019 Article en page(s) : 25 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adsorption
Caractérisation
Cuirs et peaux -- Industrie -- Aspect de l'environnement
Déchets industriels -- Elimination
Eaux usées -- Epuration
Eaux usées -- Teneur en chrome
Extraction (chimie)
LignocelluloseIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The removal of chromium (Cr) from wastewater by various adsorbents has been investigated. As compared with the commercial activated carbon, the biosorbents with inexpensive and high adsorption capacities are developed from lignocellulosic wastes. Lignin, existing in lignocellulosic biomass, is the second most abundant resource in nature. Recently, lignin-based bio-sorbents were served as an advanced novel material for the metal ions and dye adsorption from wastewater. It has showed several advantages in the wastewater treatments because of the low-cost, high adsorption capacity, easy recover, and possibility of metal recovery. In this review, the isolation of lignin from lignocellulosic biomass was summarized, and the structural characteristics of lignin were comparably analyzed. The modification of lignin was performed to obtain a large surface area, strong binding-site, and high and quick adsorption properties of lignin-based adsorption materials. The adsorption efficiency of Cr ions was found to be strongly dependent on the pH of the wastewater. To further illustrate the adsorption process, the structural changes and the interactions between the metal ions and the functional groups of the lignin-based biosorbents in the adsorption process should be further investigated. Once the cost-effective and high-efficiency modification techniques are developed, lignin-based adsorbents can be expected to be the most suitable alternatives for Cr ions removal from wastewater in industry. Note de contenu : - FRACTIONATION AND CHARACTERIZATION OF LIGNIN FROM LIGNOCELLULOSIC BIOMASS : Lignin extraction - Chemical composition and characterization of lignin - FTIR spectroscopy analysis - Thermogravimetric analysis - 1H-NMR spectra analysis - 31P NMR - Two-dimensional HSQC NMR technique - Lignin utilization
- FUNCTIONAL GROUPS PRESENT INLIGNIN AND LIGNIN MODIFICATION : Functional groups present in lignin - Lignin modification
- AN OVERVIEW OF THE LEATHER INDUSTRY : Cr removal from wastewater - Present disposal methods for the Cr (III)/Cr (VI) removal from wastewater - Lignocellulosic biomass and other non-living materials as biosorbents for the removal of Cr
- CR REMOVAL FROM WASTEWATER BY USING LIGNIN-BASED BIOSORBENTS : Modification of lignin for Cr removal from wastewater - Lignin-based activated carbons production and Cr adsorption - Cr adsorption mechanisms
- Table 1 Composition of cellulose, hemicelluloses, and lignin in various biomass
- Table 2 Functional groups found in 100, C9 repeat units of lignin
- Table 3 Cr adsorption by various biosorbents from lignocellulosic biomass and other materialsDOI : https://doi.org/10.1186/s42825-019-0003-y En ligne : https://link.springer.com/content/pdf/10.1186/s42825-019-0003-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36950
in JOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 1 (Année 2019) . - 25 p.[article]French tanning on the rebound / Tom Hogarth in INTERNATIONAL LEATHER MAKER (ILM), N° 56 (11-12/2022)
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Titre : French tanning on the rebound Type de document : texte imprimé Auteurs : Tom Hogarth, Auteur Année de publication : 2022 Article en page(s) : p. 22-28 Langues : Anglais (eng) Catégories : Cuirs et peaux -- Industrie et commerce -- France Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The author reviews the latest statistical data from the leather industry in France for HI 2022 and since the Covid pandemic. What can the trends in the data tell us about the future for the French leather sector ? Note de contenu : The fact at hand
- Finished leather product data
- Rewind to 2021
- Surviving the pandemic
- A return to formEn ligne : https://drive.google.com/file/d/1REI_Ak6QGKcH101UdbfGJ21glSFTuVxx/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38430
in INTERNATIONAL LEATHER MAKER (ILM) > N° 56 (11-12/2022) . - p. 22-28[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23658 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : From ancient craft to stainless future Type de document : texte imprimé Année de publication : 2005 Article en page(s) : p. 33-36 Langues : Anglais (eng) Catégories : Cuirs et peaux -- Appareils et matériels
Foulons
Tannage -- Appareils et matérielsIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Who invented the tanning drum? We would need to go a long , long way back in the history of our industry to find the tanner who first thought that processing could be accelerated by tumbling hides and skins in a chemical solution, rather than simply soaking them in pits. Historians may debate the origins of drum processing, but after a couple of centuries of increasing mechanisation in the tannery, the wooden drum is still alive ans well. Alternative technologies have been developed, and continue to evolve, but in the majority of the world's tanneries the wooden drum still holds sway. Before considering current developments and alternative machinery, it is worth considering the factors that make the wooden drum so successful for its purpose.
The construction of the wooden tanning drum is a scaled-up, heavy-duty development of the ancient craft of barrel making. A watertight vessel is constructed from wooden staves joining two flat ends, clamped in position by circumferential steel bands or hoops. Hardwood is strong and resilient, especially when kept wet; it can resist the twisting stresses as the vessel is rotated, and the shock loads as hides are tumbled and dropped internally. Because wood swells when wetted, wooden vessels are self-sealing, and hardwoods such as teak are very resistant to the agressive chemicals used in the liming and tanning processes. Because of this remarkable fitness for purpose, well-constructed and maintained wooden tanning drums can have service lives of twenty years or more of constant daily use. The only shadow over the future of the wooden drum is the increasing scarcity of the tropical hardwoods needed to produce large vessels - such hardwoods are a finite resource and future supplies cannot be guaranteed indefinitely.Softwoods such as spruce or yellow pine can be used sucessfully for smalller drums up to around 2 metres diameter, but they lack strenght and have a shorter working life. Some manufacturers, such as Italprogetti, have turned to manufacturing large drums from plastics, braced and tied with steelwork like a wooden drum; these are claimed to give comparable strenght to wood with lighter construction, and are very easy to keep clean internally; the material does not absorb any of the float, and there is no possibility of cross-contamination between loads.Note de contenu : - Developments in wood
- Gently does it
- The rotating basket
- Fig. 1 : Conventional 4.2 x 4.5 m wooden liming drums with side-sliding manual doors
- Fig. 2 : Conventional 4 x 4 m wooden tanning drum with recirculation filter
- Fig. 3 : Steel braced polypropylene conventional drum
- Fig. 4 : Internal waskboards and pegs in polypropylene drum
- Fig. 5 : "Flat pack" of wooden drum components ready for despatch.
- Fig. 6 : Heavily braced "Cangilones" drum for retanning
- Fig. 7 : Stainless tipping paddles in a shepskin tannery
- Fig. 8 : Large static paddles are losing flavour due to high water usage
- Fig. 9 : The internal spiral of the inclined "mixer" allows controlled unloading
- Fig. 10 : Stainless steel Cangilones drums for retanning / dyeing
- Fig. 11 : Wooden Cangilones drums for liming/tanning
- Fig. 12 : A 3-compartment, "Y" - division dye drum in stainless steel, loading 1,800 kg shaved weight
- Fig. 13 : Unimatik stainless "roating basket" vessel with hydraulic drive and door opening, loading 2,500 kg shaved weight
- Fig. 14 : Vallero Propellor stainless "roating basket" vessel with motorised sliding door, loading 2,000 kg shaved weight
- Fig. 15 : Unloading the Vallero PropellorEn ligne : https://drive.google.com/file/d/12ubQgG5VNvq1UPm35h3Tv0x-1bvGnnHm/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32334
in WORLD LEATHER > Vol. 18, N° 3 (05/2005) . - p. 33-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006183 - Périodique Bibliothèque principale Documentaires Disponible PermalinkFrom low grade leather to high specification fashion article taking the environment friendly road / Carla Cattaneo in WORLD LEATHER, Vol. 6, N° 5 (08-09/1993)
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PermalinkFrom tannery to table : an account of gelating production / F. A. Johnston-Banks in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 68 (Année 1984)
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PermalinkPermalinkFunctional modification on type 1 collagen-based composite films / Ruirui Wang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 108, N° 3 (05-06/2024)
PermalinkFunctional properties of hydrolysis products from collagen / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIII, N° 2 (02-03/1998)
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PermalinkFundamental research on the mechanism of oil-tanning with alkyl sulfonyl chloride / Zhou Hualong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 89, N° 4 (07-08/2005)
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PermalinkPermalinkFundamentals of pollution control for the leather industry / Arlington [United-States] : Shoe Trades Publishing Co. (1997)
PermalinkFungal biotransformation of bovine hair : Assessment of structural changes / B. C. Galarza in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 6 (11-12/2007)
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PermalinkFungal biotransformation of bovine hair : Part 1 - Isolation of fungus with keratinolytic activity / B. C. Galarza in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 3 (05-06/2004)
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PermalinkFungal biotransformation of bovine hair. Part 2 : Biomass and proteases produced as a function of incubation time. Assessment of hair waste digestion / B. C. Galarza in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 4 (07-08/2006)
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PermalinkFungal deterioration on ancient leather artifacts / Zonghuan Ba in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVIII, N° 12 (12/2023)
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PermalinkFungicide evaluation for the protection of wet blue hides / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 69 (Année 1985)
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PermalinkFungicides for treating wet blue hides / A. C. Galloway in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 58 (Année 1974)
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